Lack of Effectiveness of Postchemotherapy Lymphadenectomy in Bladder Cancer Patients with Clinical Evidence of Metastatic Pelvic or Retroperitoneal Lymph Nodes Only: A Propensity Score-based Analysis.

Background: Limited data is available on the role, and extent of, postchemotherapy lymphadenectomy (PC-LND) in patients with clinical evidence of pelvic (cN1-3) or retroperitoneal (RP) lymph node spread from urothelial bladder carcinoma.

Objective: To compare the outcomes of operated versus nonoperated patients after first-line chemotherapy.

Design, Setting, And Participants: Data from 34 centers was collected, totaling 522 patients, treated between January 2000 and June 2015.